Todd, how much of it is additional to what was published in The General Vol. 19 #3? Does the Guide have a full set of AH Errata for Gunslinger?
It has the entire GSL content from V.19 #3 (in color), the Northfield of End article and showdown (V20 #5), Gunslinger by Mail article (V22 #1), and the Land of the Midnight Gun showdowns (V22 #5).
It doesn't have any errata though. Alex, understand that most of the errata came about via those of us who frequented The Gunslinger Saloon (Tom, Mo, you and I and others).
Like I said, it doesn't add anything you can't get otherwise (though all I had was a photocopy of Northfield and didn't have Midnight Gun), it's just nice to have an extra copy of stuff